食價 [－价]

Jyutping sik6 gaa3
Pinyin shí jià

Definitions (CC-CANTO)
  1. price cheating; scalping (trading)
Definitions (粵典–words.hk)
  1. 動詞
    為​交易​做​中介人​嘅​時​候​，​壓低​賣​家​嘅​開​價​，​又​提高​對​買​家​嘅​報​價​，​從​而​賺​咗​中​間​嘅​差​價​；​同摩貨類​似​，​但​係​摩貨​無​呃​人​嘅​成份
    to skim profits from a deal without the buyer and seller realising